Security Monitor Pro is working great for me. I have set it to perform monitoring on a schedule, and I have added several schedules. I see there are some color changes for the schedules. What exactly these colors signify?

There are four color codes used: Black, Green, Orange and Gray. Black: Indicates a schedule is active and is waiting for its next run to execute or the schedule is completed. Green: Shows a schedule is currently running. Orange: This color signifies that a schedule is expired and will not run again. Grey: This color mark shows that a schedule is in disabled state.